The surface of surface water pipelines suffers from severe corrosion; what methods can be used to prevent this corrosion? 【Video】Chemical Industry Weekly, Issue 80: fs04

To prevent corrosion on the surface of surface water pipelines, the following methods can be employed: 1. **Coating protection**: Applying anti-corrosion coatings such as epoxy resin or polyurethane to the pipeline surface can effectively prevent contact between the pipeline and corrosive substances. 2. **Cathodic protection**: By applying an external current or using sacrificial anodes, the potential of the pipeline is reduced, thereby slowing down the corrosion process. 3. **Material selection**: Use materials with greater corrosion resistance to manufacture the pipes, such as stainless steel or specific alloys. 4. **Regular inspection and maintenance**: Regularly inspecting and cleaning the pipes, as well as repairing any damaged parts promptly, can extend their service life. The above methods can be used in combination to achieve the best anti-corrosion effect. .